Again you're splitting. There is big T Trauma and little t trauma. They all add up and everyone is different in how they cope and adapt/maladapt. Entitled self absorbed brats are just one manifestation, so are; workaholics, alcoholics, people pleasers, drug attacks, endurance athletes, and many others. There is a neuroscience to support this, Dr. Paul Conti is a great source. Trauma is not something that should be moralized, minimized, or glorified.
Discussion
The problem with the word, and this is what I'm getting at, is that no one has a clear definition of what it is. As a result is can and is anything a person wants to use to justify accomplishing nothing. We know society is stocked up on weak "traumatized" people. So while we can talk about how important it is to respect "trauma," when the shit hits the fan, weak people are going undo civilization. Those who will come out the other side are those who can put their brokenness aside and build things for other people.